Filterbank-based blind signal separation with estimated sound direction

Author

Park, Hyung-Min ; Dhir, Chandra Shekhar ; Oh, Do-Kwan ; Lee, Soo-Young

Author_Institution

Dept. of Biosyst., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

fYear

2005

fDate

23-26 May 2005

Firstpage

5874

Abstract

Based on a mathematical model of the human auditory pathway, a binaural auditory system has been developed for sound localization and speech enhancement. The developed system includes a filterbank, and the blind signal separation is conducted at each filtered signal. The estimated directions of arrival are collected at each subband, and are utilized to localize the multiple sources from convolved mixtures. Imposing an additional constraint based on the estimated sound directions shows faster convergence; also, better signal separation is expected for noisy multi-source speech.

Keywords

audio signal processing; blind source separation; channel bank filters; direction-of-arrival estimation; hearing; speech enhancement; binaural auditory system; blind signal separation; convolved mixtures; filterbank; human auditory pathway; mathematical model; multiple source localization; noisy multi-source speech; sound direction of arrival estimation; sound localization; speech enhancement; Acoustic noise; Auditory system; Blind source separation; Convergence; Direction of arrival estimation; Filter bank; Humans; Mathematical model; Source separation; Speech enhancement;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 2005. ISCAS 2005. IEEE International Symposium on

Print_ISBN

0-7803-8834-8

Type

conf

DOI

10.1109/ISCAS.2005.1465975

Filename

1465975